Designs: UI Designs are ready (Some UI screens attached) / UI Designs are to be made.APIs Status: APIs are already developed / Need to be developedBackend Technology (APIs): APIs need to be developed in PHP/NodeJSTimeline: 1-2 Months

Send a Proposal if you can do it and I will send a detailed Requirement Documents for further discussion if I shortlist your Proposal.

App to app call and app to app chat/video chat.Use 4 sip line but make i can add by self next time.Admin panel with website base.

2. Any user register on my app then i make 4 sip with 4 calling rate and he check auto which low then connect with that sip and use calling.3. 100% working